Conicalcita
Conicalcita is a mineral with formula CaCu(AsO₄)(OH), in the Arseniatos group. This specimen comes from Mina Previsión, Fiñana, Almería, Andalucía, España and joined the Terrium collection in 2024.
Description
Small dice-shaped piece coated with the characteristic green botryoidal habit of conichalcite. Very representative of the locality.
History of this specimen
Collected by "Meli", Amelia Molina, and given to me as a gift.
About Conicalcita
Conichalcite is a calcium copper arsenate. Here it occurs as globular coatings of very saturated green with a matt aspect.
About the locality
Finite material, no longer recoverable. These pieces were at the mine entrance, at the adit mouth, on a vein that looked like an arcade which was left for years so collectors and the curious could enjoy it—but one day it was found broken and no more can be taken. Mina Previsión is, or was, Spain’s most emblematic locality for this habit (grape-like) with that matt, saturated green on dark ferruginous matrix.
Technical data
- Catalogue No.
- 0334
- Composition
- CaCu(AsO₄)(OH)
- Name
- Conicalcita
- Group
- Arseniatos
- Category
- Meritum Persé
- Matrix
- Ferruginosa (Limonita/Goethita)
- Mine
- Mina Previsión
- District / Municipality
- Fiñana
- Province
- Almería
- Region
- Andalucía
- Country
- España
- Size (cm)
- 1.5 x 1.5 x 1.5
- Weight
- 14 g
- Acquired
- 2024
- Ex-collection
- Amelia Molina
- Etymology
- From the Greek roots κονία (konis, dust) and χαλκος (chalkos, copper), chosen by Breithaupt and Fritzsche to reflect its physical appearance and metallic content.
- Quality
- Buena
- Value trend
- Estable
Related specimens
- Abellaíta — España
- Abernathyita — España
- Abernathyita — España
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- Adamita — México
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- Adamita (Cuprífera) — Grecia
- Adamita — México